It's that time of year, ACC fans. Duke kicks off the ACC's spring football schedule with practice tomorrow, so it's time to take a look at three storylines to watch for each program. We'll start with the Atlantic Division:

BOSTON COLLEGE

Spring practice starts: March 15

Spring game: April 16

What to watch:

The progression of quarterback Chase Rettig. As a true freshman, Rettig replaced Dave Shinskie as starter against Notre Dame on Oct. 2. He’ll only get better with more experience, and there’s room for improvement, as he threw nine interceptions and six touchdowns. He completed 51.3 percent of his passes for 137.6 yards per game. Two of those picks came in the 20-13 loss to Nevada in the Kraft Fight Hunger bowl, but he’s expected to take an important step forward this offseason and will need to if BC is going to graduate from the nation’s 109th best offense.

The offense under a new coordinator. Kevin Rogers replaced Gary Tranquill, who retired after the bowl game, and the Eagles will have to adjust to a new scheme and system, starting this spring. Rogers said he'll adapt his system to the personnel he has to work with, but considering he was hired on Monday, there hasn't been much time for him to evaluate film.

The revamped offensive line. BC has to replace three starters up front, including left tackle Anthony Castonzo, right guard Thomas Claiborne and right tackle Rich Lapham. Emmett Cleary and center Mark Spinney are returning starters, and left guard Ian White started a few games at the end of the year. Bryan Davis, Claiborne’s backup at right guard, and John Wetzel, Castonzo’s backup, are frontrunners to earn starts.

CLEMSON

Spring practice starts: March 7

Spring game: April 9

What to watch:

Quarterback Tajh Boyd. Prior to the arrival of two early enrollees, Boyd was the only scholarship quarterback on the roster, and his experience alone -- albeit limited -- makes it his job to lose. The staff wants him to become a little more accurate and consistent this spring. His education was accelerated at this time a year ago when former quarterback Kyle Parker spent the spring playing baseball, but that was under former offensive coordinator Billy Napier. He’s got a new coordinator -- and a new offense to learn.

The new offensive scheme. First-year offensive coordinator Chad Morris brings an up-tempo style similar to that of Auburn’s, and the Tigers will have to learn it as quickly as he’ll want them to execute it. Morris has said Boyd is suited just right to lead it. Morris will want to stretch the field in every direction, depend on a strong running game and include long pass plays. He’s tasked with improving an offense that ranked No. 10 in the ACC in both scoring offense and total offense.

Defense up the middle. It starts up front, where the Tigers have to replace defensive tackle Jarvis Jenkins. Linebacker Brandon Maye, who played in the middle a lot, decided to transfer, and safety DeAndre McDaniel, who controlled the middle of the field in the secondary, has also graduated. The Tigers have the No. 1 inside linebacker and No. 1 outside linebacker in the country in this year’s recruiting class, but they won’t arrive until the summer. For now, Corico Hawkins returns as a starting middle linebacker, while Quandon Christian is likely to stay on the outside. Rennie Moore will replace Jenkins, but McDaniel’s spot is up for grabs.

FLORIDA STATE

Spring practice starts: March 21

Spring game: April 16

What to watch:

Big holes on the offensive line. There’s depth, experience and incoming talent, but there are also big shoes to fill with the graduation of left guard Rodney Hudson and center Ryan McMahon. Right guard David Spurlock has been seen snapping on the sidelines at practices, indicating he could move to center, while recovering from concussions and going through rehab. McMahon’s backup was Jacob Stanley. Henry Orelus, Bryan Stork and Rhonne Sanderson all started at right guard for Spurlock when he was out. Junior college transfer Jacob Fahrenkrug, the No. 4 overall junior college prospect, could have an immediate impact at left guard.

Backup quarterback battle. With EJ Manuel a lock as the starter, the attention turns to the No. 2 spot. Clint Trickett, a redshirt freshman and son of offensive line coach Rick Trickett, and Will Secord, a redshirt sophomore, are the top two candidates. Secord was named the most improved quarterback of the spring at this time a year ago. Neither of them have thrown a collegiate pass.

Linebackers. The Seminoles will have to replace two starters in Kendall Smith and Mister Alexander. Nigel Bradham is the only returning starter. This spring will feature competition among Christian Jones, Telvin Smith, Vince Williams and Jeff Luc. It’s a more talented crop waiting in the wings, but inexperience is a factor. It’s a chance for Luc and Jones -- two of FSU’s top recruits in the 2010 class -- to remind everyone why they were rated the No. 1 inside linebacker and No. 2 outside linebacker, respectively, in the country.

MARYLAND

Spring practice starts: March 29

Spring game: April 30

What to watch:

New staff, new schemes. First-year coach Randy Edsall wants to be multiple, get vertical and take advantage of quarterback Danny O’Brien’s strengths. The departure of former defensive coordinator Don Brown to Connecticut was a surprise and a blow to the defense, which will now have to make a transition under a new coordinator who has yet to be hired.

Competition at linebacker. Two starters have to be replaced in Alex Wujciak and Adrian Moten, who were also both leaders of the defense. Demetrius Hartsfield returns as a starter, but the new staff will have to figure out who else fits into what slots. Ben Pooler has had knee trouble, but he is expected to compete with Darin Drakeford and Ryan Donohue, who were both No. 2 at their respective positions in 2010.

Special teams. Not only did the Terps lose a four-year starter in punter/placekicker Travis Baltz, they also have to replace their top kick returner and conference leader in all-purpose yards in receiver Torrey Smith, who left early for the NFL. Nick Ferrara handled kickoffs last year and was No. 2 behind Baltz at both kicker and punter, but he’s a placekicker first, and has to get back on track with consistency. He’ll be the only scholarship kicker on the roster until incoming freshman Nathaniel Renfro joins the team this summer. Dexter McDougle has returned kickoffs in the past, and Trenton Hughes is another option, but with a new staff, it could be a clean slate.

NC STATE

Spring practice starts: March 17

Spring game: April 16

What to watch:

Mike Glennon. The team is moving forward as if starter Russell Wilson won’t return, promoting Glennon to No. 1 on the depth chart. The offense will have a new look, as the plays will be suited to Glennon’s strengths. At 6-foot-7, he’s much taller than Wilson, a more prototypical drop-back passer with a strong arm. While the plays might look different to the fans, they’re the same ones Glennon has been practicing since the day he arrived on campus. He’s a smart, unflappable player scheduled to graduate this May, but we haven’t seen enough of him to know just how good he is.

A new crop of receivers. NC State will have to replace three seniors in Owen Spencer, Jarvis Williams and Darrell Davis. Spencer and Williams led the Pack in receiving last year, combining for nine touchdowns and over 1,600 yards. NC State will turn to Jay Smith, who had 10 catches in 12 games, Steven Howard, Quintin Payton, and T.J. Graham, who had four touchdowns and played in all 13 games. Payton played a little more toward the end of the year, and he’s a tall, big target (about 6-foot-4) and comparable to Williams. Bryan Underwood, who redshirted last year, could also contribute.

Running back competition.James Washington had taken over the starting job at the end of 2010, but he’ll be pushed this spring by Dean Haynes and Mustafa Greene, who led the team in rushing in 2010 as a true freshman. They’ll also be under the direction of a new assistant coach, as Jason Swepson is now the head coach at Elon. It will be the first time Greene has been in a spring practice, and Washington, who was hurt last year, is finally healthy.

WAKE FOREST

Spring practice starts: March 15

Spring game: April 16

What to watch:

Progress of quarterback Tanner Price. The maturation of Price, who started nine games as a true freshman last year, will be crucial to the Deacs’ hopes of returning to the postseason. Price was forced to play earlier than expected and finished with seven touchdowns and eight interceptions. He completed 56.8 percent of his passes for 1,349 yards.

A defense in transition. Coach Jim Grobe has said the staff is committed to making the transition to a 3-4 defense. The Deacons used that scheme to defend the triple option against Georgia Tech and Navy, and continued to experiment with it as the season progressed. This linebackers in this year’s recruiting class were brought in specifically with the 3-4 defense in mind.

Redshirt offensive linemen. There were three true freshmen who redshirted last year who are expected to give four returning starters some legitimate competition -- Colin Summers, Dylan Heartsill and Daniel Blitch. The Deacs will also have to replace starting center Russell Nenon. Chance Raines was his backup last year.